---
product_id: 32639628
title: "Rubber Sealant Coating, Waterproof, Black, 32 oz"
brand: "flex seal liquid"
price: "451 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Flex Seal Liquid"
url: https://www.desertcart.ro/products/32639628-rubber-sealant-coating-waterproof-black-32-oz
store_origin: RO
region: Romania
---

# 100% waterproof & moisture-proof UV resistant for long-lasting protection 32 oz versatile liquid rubber Rubber Sealant Coating, Waterproof, Black, 32 oz

**Brand:** flex seal liquid
**Price:** 451 Lei
**Availability:** ✅ In Stock

## Summary

> 💧 Seal the deal with Flex Seal — because leaks don’t wait!

## Quick Answers

- **What is this?** Rubber Sealant Coating, Waterproof, Black, 32 oz by flex seal liquid
- **How much does it cost?** 451 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/32639628-rubber-sealant-coating-waterproof-black-32-oz)

## Best For

- flex seal liquid enthusiasts

## Why This Product

- Trusted flex seal liquid brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** UV resistant formula prevents cracking and fading, keeping your projects flawless under the sun.
- • **Seal Like a Pro:** Brush, roll, dip, or pour on a seamless, flexible rubberized coating that stops leaks fast.
- • **Trusted by Thousands:** Join over 14,000 satisfied users who rate it 4.4 stars for reliable, professional-grade sealing.
- • **Multi-Surface Mastery:** Perfect for wood, metal, glass, plastic, and PVC—one product, endless fixes.
- • **Rust & Corrosion Shield:** Protect metal surfaces from rust and chemical damage with a durable, watertight barrier.

## Overview

Flex Seal Liquid Rubber Sealant Coating is a 32 oz black, waterproof, and UV resistant liquid rubber that creates a flexible, watertight seal on multiple surfaces including wood, metal, glass, plastic, and PVC. It prevents rust and corrosion, is chemical resistant, and is highly rated by thousands of users for fast, reliable leak protection.

## Description

desertcart.com: Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 32 oz | Stops leaks fast, brush, roll, dip or pour on, UV resistant, prevents rust, corrosion, roof, basement, RV, gutters, masonry : Tools & Home Improvement

Review: Works as advertised!!! - I use it to seal cracks in asphalt and between asphalt and concrete around my house. Also on my roof and around the chimney. I have used it to rust proof areas on vehicles. This stuff is the best i have ever found to do these jobs! I only wish they made it in a squeeze applicator. I will definitely purchase again.
Review: It really works! - It really works! It’s incredible! Highly recommend for water leakage! Not for plumbing!

## Features

- Flex Seal Liquid is liquid rubber in a can! Now you can brush, roll, dip or pour it on!
- Use anywhere you need a watertight, flexible rubberized coating
- Goes on smooth and covers fast, sealing out water, air and moisture
- UV Resistant
- Prevents rust and corrosion. Chemical resistant

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GFYA5IG |
| Best Sellers Rank | #1,236 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Hardware Sealers |
| Brand | Flex Seal Liquid |
| Brand Name | Flex Seal Liquid |
| Color | Black |
| Compatible Material | Rubber |
| Customer Reviews | 4.4 out of 5 stars 14,073 Reviews |
| Global Trade Identification Number | 00853517006290 |
| Included Components | LFSBLKR32 |
| Item Dimensions | 4.75 x 4.25 x 4.25 inches |
| Item Form | Liquid |
| Item Type Name | LFSBLKR32 |
| Item Weight | 2 pounds |
| Item dimensions L x W x H | 4.75 x 4.25 x 4.25 inches |
| Manufacturer | SWIFT RESPONSE LLC |
| Material | Rubber |
| Material Type | Rubber |
| Model | LFSBLKR32 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | LFSBLKD32BC |
| Style | LFSBLKR32 |
| Style Name | LFSBLKR32 |
| Surface Recommendation | Wood, Metal, Glass, Plastic, PVC |
| UPC | 853517006290 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Limited |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Flex Seal Liquid
- **Item Weight:** 2 pounds
- **Item dimensions L x W x H:** 4.75 x 4.25 x 4.25 inches
- **Material:** Rubber
- **Style:** Liquid Rubber

## Images

![Rubber Sealant Coating, Waterproof, Black, 32 oz - Image 1](https://m.media-amazon.com/images/I/81TV0ebuvwL.jpg)
![Rubber Sealant Coating, Waterproof, Black, 32 oz - Image 2](https://m.media-amazon.com/images/I/81d2NNxeDZL.jpg)
![Rubber Sealant Coating, Waterproof, Black, 32 oz - Image 3](https://m.media-amazon.com/images/I/91PRtjBqu3L.jpg)
![Rubber Sealant Coating, Waterproof, Black, 32 oz - Image 4](https://m.media-amazon.com/images/I/81gGRzJ54CL.jpg)
![Rubber Sealant Coating, Waterproof, Black, 32 oz - Image 5](https://m.media-amazon.com/images/I/813PajvpU8L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Can i use this to seal the bottom of camping trail made of plywood would it make the bottom water proof to the road conditions?**
A: Hi there. Thank you so much for reaching out with your question. Yes, Flex Seal Liquid will effectively coat and seal the bottom of the trailer and protecting it from water. However, road conditions may require you to reapply coats from the wear and tear put through time. Please let us know how it turns out for you. Please message us with any other questions. We're always happy to help.

**Q: Can this be used to repair a spring box?**
A: Thank you for reaching out! 
We have not tested Flex Seal Liquid for this type of application.
Lucas - Customer Care at Flex Seal Products
(Swift Response - The makers of Flex Seal Liquid)

**Q: Will it it hold a little crack on the thread of water tank causing pressure lost?**
A: Hi there, great question! We cannot guarantee that Flex Seal Liquid will hold on the crack due to the fact that it is not meant to withstand high PSI.

**Q: Can this be used to repair cracking finish on metal garden posts?**
A: Yes. Keep in mind it’s rubber so apply accordingly

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as advertised!!!
*by D***H on August 14, 2026*

I use it to seal cracks in asphalt and between asphalt and concrete around my house. Also on my roof and around the chimney. I have used it to rust proof areas on vehicles. This stuff is the best i have ever found to do these jobs! I only wish they made it in a squeeze applicator. I will definitely purchase again.

### ⭐⭐⭐⭐⭐ It really works!
*by S***T on August 10, 2026*

It really works! It’s incredible! Highly recommend for water leakage! Not for plumbing!

### ⭐⭐⭐⭐ A little expensive, but it does the job.
*by G***R on April 6, 2026*

I used this on a steel trash can that I store bird seed in. The top had a gash in it and no matter what I did, water would get in and ruin the seed. I hated to throw it away since that was the only problem. A can of this, and the problem was solved. It's a little spendy for the amount you get which is why I removed 1 star. But there's no question it works good. My only other gripe is that it takes a long time to set up and dry. So if you can keep your project level and dry for 24 hours, that will go a long way to helping it cure. I just used a disposable paint brush to apply it and I kept the now hard brush for future applications. It's fairly durable depending on what you're trying to accomplish. I tried using it on the feet of my deck chairs hoping it would save wear and tear on my deck? Not a good idea, it just fell off after a couple of uses. But for sealing, this is a good product.

## Frequently Bought Together

- Flex Seal Liquid Rubber in a Can, 32-oz, Black
- Gorilla Waterproof Patch & Seal Clear Spray 14oz
- Gorilla Waterproof Patch & Seal Tape 4" X 10' Black, Pack Of 1

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**Shop now:** [https://www.desertcart.ro/products/32639628-rubber-sealant-coating-waterproof-black-32-oz](https://www.desertcart.ro/products/32639628-rubber-sealant-coating-waterproof-black-32-oz)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-08-22*